a. Process Gas Absorber (T = 69 °C; P = 53 barg)
Parameter Yin Yout NOG Z HOG KOG.a Carrying capacity
Unit Mole fraction Mole fraction Transfer units m m g-mol/h.m2.Pa kmol /kmol carbonate solution
H2S 0.0316 0.000426 4.34 13.39 3.09 0.393 0.00748
CO2 0.0418 0.000448 4.53 13.39 2.95 0.410 0.00992
b. Utility Gas Absorber (T = 69°C; P = 15.45 barg)
Parameter Yin Yout NOG Z HOG KOG.a Carrying capacity
Unit Mole fraction Mole fraction Transfer units m m g-mol/h.m2.Pa kmol /kmol carbonate solution
H2S 0.0222 7.220E-05 5.75 19.48 3.39 0.393 0.00573*
CO2 0.0367 9.350E-05 6.01 19.48 3.24 0.410 0.00949**
* 130.42% excess capacity based on PGA removal efficiency; ** 104.57% excess capacity based on PGA removal efficiency.
Table 3: Mass Transfer Parameters and Carrying Capacity of PGA and UGA of Trains 1 and 2.